Pour a Concrete Countertop for an Outdoor Bench

Seal the Concrete Countertop

I’ll seal the concrete with two coats of this Aqua Mix Sealers Choice Gold product.

Cast your own Concrete Countertop for a Potting Bench with a Galvanized Corrugated Metal Roof
Apply sealant to concrete countertop

When it was completely dry we carried the counter out to the bench in the garden.

Cast your own Concrete Countertop for a Potting Bench with a Galvanized Corrugated Metal Roof
Carry finished concrete counter out to garden

Then slid it up onto temporary supports.

Cast your own Concrete Countertop for a Potting Bench with a Galvanized Corrugated Metal Roof
Slide counter into place

Then pulled them to drop it into place on the rails. There were a few spots that needed thin shims.

Silicone Top to Rails

Back up on supports I laid in a bead of silicone on the rails then eased the counter into place and tapped in the shims.

Cast your own Concrete Countertop for a Potting Bench with a Galvanized Corrugated Metal Roof
Apply silicone to bench rails

Add the Sink

Next the sink will be added.

Cast your own Concrete Countertop for a Potting Bench with a Galvanized Corrugated Metal Roof
Installing the DIY stainless steel sink

I also used silicone to glue it in place plus some foam spacers to center it in the hole. I applied some weight while the silicone cured.

Plumb the Sink to the Dry Well

I’ll now connect the sink to the dry well with some ABS pipe and a trap.

Cast your own Concrete Countertop for a Potting Bench with a Galvanized Corrugated Metal Roof
Installing drain pipe from sink to dry well

I don’t think the trap is really needed but I had it and allows some flexibility when gluing the fittings together. I’m not a plumber so I’ll take all the help I can get.

Add the Upper Shelves

I’ll add the 1×6 that goes across the back.

Cast your own Concrete Countertop for a Potting Bench with a Galvanized Corrugated Metal Roof
Attaching upper shelf support

Then the shelf supports to the back legs. And finally the upper shelves.

Cast your own Concrete Countertop for a Potting Bench with a Galvanized Corrugated Metal Roof
Attaching shelf boards

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